Polymerase chain reaction is really just a process of heating and cooling genetic material.
聚合酶链反应（PCR）确实就是一个给遗传物质加热和冷却的工艺而已。
Cooling and heating of fermentation gas is done by the jacket.
发酵气的冷却或加热，均由夹套来完成。
A typical heat medium heating system and cold medium cooling system were given.
笔者以本厂的醇酸树脂生产为例，介绍了热媒加热循环系统和冷媒冷却系统。
The machine is very efficient in heating, pressing, cooling the base material.
这台机器在加热、压制、冷却原材料方面效率很高。
The main cooling and heating mode nowadays is electricity.
目前的制冷采暖方式基本采用电力来实现。
Objective To investigate the cooling effect of blood flow on living tissue heating.
目的研究血液流动对生物组织加热时的冷却效应。
If heating-pump is added in its cooling, it can save power very much.
再通过在冷却水回路加装热泵制备洗澡用热水，可以节约许多燃油。
Short heating or cooling time and stable temperature.
加温及冷却时间快速，温度稳定。
Short heating or cooling time and stable temperature.
加温及冷却时间快速，温度稳定。
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